1253124251 has 8 divisors (see below), whose sum is σ = 1289391984. Its totient is φ = 1216982880.

The previous prime is 1253124239. The next prime is 1253124343. The reversal of 1253124251 is 1524213521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253124251 is a prime.

It is a super-2 number, since 2×1253124251² = 3140640776888622002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1253124251.

It is not an unprimeable number, because it can be changed into a prime (1253124221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11285 + ... + 51318.

It is an arithmetic number, because the mean of its divisors is an integer number (161173998).

Almost surely, 2^1253124251 is an apocalyptic number.

1253124251 is a deficient number, since it is larger than the sum of its proper divisors (36267733).

1253124251 is an equidigital number, since it uses as much as digits as its factorization.

1253124251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63181.

The product of its digits is 2400, while the sum is 26.

The square root of 1253124251 is about 35399.4950670204. The cubic root of 1253124251 is about 1078.1140643080.

Adding to 1253124251 its reverse (1524213521), we get a palindrome (2777337772).

The spelling of 1253124251 in words is "one billion, two hundred fifty-three million, one hundred twenty-four thousand, two hundred fifty-one".